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TSAG Crystal

TSAG Faraday Crystal Laser Crylink
TSAG Crystal

TSAG Faraday crystal is an ideal magneto-optical crystal, which is mainly used in the wavelength range of 400-1600 nanometers, namely the visible and infrared bands. TSAG is an indispensable crystal for the next generation of high-power lasers due to its advantages of high constant, good thermal and mechanical properties. Compared with TGG, the Verdet constant at 1064 nm of TSAG is 20 % higher and the absorption is 30 % lower. Recently, the optical and scintillation properties of TSAG (Tb3Sc2Al3O12) crystal was investigated, and capabilities to be used as a scintillator screen was demonstrated.


Transmittance Range(bulk/uncoated)400-1600 nm
Crystal StructureCubic,Space group Ia3d
Chemical FormulaTb3Sc2Al3O12
Lattice Parametera=12.3 Å
Growth MethodCzochralski
Density5.91 g/cm3
Melting Point1970℃±10℃
Wavefront Distortion<λ/8
Extinction Ratio>30 dB
Diameter Tolerance+0.00 mm/-0.05 mm
Length Tolerance+0.2 mm/-0.2 mm
Chamfer0.1 mm @ 45°
Flatness<λ/10 at 633 nm
Surface Quality10/5
AR coating<0.3% @ 1064 nm

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